I've boomed multiple BFs and HHs now. I think it happened at least 3 times ( 2 HHs and 1 BF) in the past 2 days. Happened at 7:00PM EST today with BF if it can help with anything . It only happened in the Evil Dead map for me. Is the map bugged in some sort of way ?
Meso explosion is glitched, you have to manually attack at the very end to get the exp. If you boom it from start to finish, you won't get any exp